21370664

素因数分解:

$2^3\times 7^2\times {\mathrm{54517}}^1$

素因数の和:54537

約数の個数: 24

約数和(自身を含む): 46612890

約数和(自身を除く): 25242226

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54517, 109034, 218068, 381619, 436136, 763238, 1526476, 2671333, 3052952, 5342666, 10685332, 21370664]

約数ペア:

[(1, 21370664), (2, 10685332), (4, 5342666), (7, 3052952), (8, 2671333), (14, 1526476), (28, 763238), (49, 436136), (56, 381619), (98, 218068), (196, 109034), (392, 54517)]